“Just use the formula,” said the professor. “No need to type everything out in full each time.”

“I have,” said Norris. “But C28H28F17N3O8S.C27H28F15N3O8S.C26H28F13N3O8S.C25H28F11N3O8S.C24
H28F9N3O8S.C14H10F17NO4S.C13H10F15NO4S.C12H10F13NO4S.C11H10F11NO4S.C10H10F9NO4S.C7H12O2)x.C8H18S occurs seventeen times on the first page.”